Hi there. Hi have in cylindrical coordinates that , and I must make the graph, and take it into cartesian coordinates. How should I do?

I've tried this way:

I think its a semi-plane parallel to the line: . I thought of working geometrically with it, taking another point. Or taking three points, but I think its probably easier someway, just from the equations system. I don't know how to take x and y, to make them a function of z.

Bye there!